New playersyer wondering about summon banner in this game

I'm a new player, I'm trying to find some guide and ingo regarding this game, but all I can find is some guide in YouTube about 6 months to 1 year ago. Can someone advise me about what type of banner should I pull from? How long apart are pilgrim banner far apart? If I want to decently progress in this game how many dupe should I pull? Is one copy enough? What material should I be accumulating? If I should purchase something during this anniversary what are the best for the my bucks? And what should I upgrade the most yo make my my Nikkes CP increases the most? Sorry for the long and many question. Just played about a week ago, because I read somewhere that people cries because the story is so compelling. I thought I give it a try. But for a game that's been 2.5 years there are so many things you do and I got really lost lol. Also when are big events like anniversary event usually take place in a year, and how many should I expect?